Same experience I had with Ncore (NAD M22) and Sopra 2's. They werent bright or harsh, just sterile and uninvolvimg. The dealer even said "that's the best Class D I've heard in here" which was quite the indictment of previous class D because the Ncore were getting smoked by the class ab amps.
These speakers are just so sensitive to amplification. The Pass amps are a great match and so was Perla Audio which is what I ended up going with.
These speakers are just so sensitive to amplification. The Pass amps are a great match and so was Perla Audio which is what I ended up going with.